Hi.. If you are looking for a battery replacement, A Samsung service center would be the best place. But prices might be a little higher than normal shop. You can check on a regular shop as well. But make sure to choose a reputed one. Liberty Plaza is the ideal place to choose.
There are a few relaiable places in Liberty Plaza such as Genius Mobile, My Fix it and Western Mobile.
But a samsung service center would be best. If my comment helped you in any way, please consider hitting the 3 dot menu and accepting my answer as a solution.
